UCX1V182MNJ1MS

The UCX1V182MNJ1MS is a chip-type aluminum electrolytic capacitor from Nichicon's UCX series, specified for high-temperature operation up to +135°C. It delivers 1.8 mF of capacitance at a 35 V rating in a surface-mount radial/can package designed for automated carrier-tape assembly.

Engineered for demanding environments, this part combines a high operating temperature range, AEC-Q200 qualification, and a low-temperature ESR specification to support reliable power filtering and decoupling across wide thermal and frequency conditions.

Key Features

• Electrical Performance — 1.8 mF capacitance with ±20% tolerance and a 35 V rated voltage for bulk energy storage and decoupling in power rails.
• Low-temperature ESR Spec — ESR specified at −40°C and 100 kHz (35 mOhm) to ensure predictable impedance and stability in cold-start and low-temperature operation.
• High Ripple Capability — Rated ripple current of 1.1 A at 120 Hz and 2.2 A at 10 kHz to support switching converters and high-frequency power stages.
• High-temperature Endurance — Endurance rating of 2000 hours at 135°C, with the series endurance characteristics ensuring capacitance and leakage stability after high-temperature stress.
• Surface-mount, Tape-fed Package — Radial can SMD chip form factor compatible with automatic mounting machines and a recommended land pattern size of 1.83 × 1.83 cm for PCB layout.
• Automotive Qualification & Compliance — AEC-Q200 qualified and RoHS compliant, supporting use in regulated applications that require automotive-grade components.

Typical Applications

• Automotive power electronics — Bulk filtering and decoupling in electronic control units (ECUs) and power modules where AEC-Q200 qualification and high-temperature endurance are required.
• DC–DC converters and power supplies — Energy storage and ripple smoothing for converters operating across wide frequency ranges, leveraging the specified ripple current and ESR values.
• High-temperature electronics — Power filtering in systems exposed to sustained elevated temperatures up to +135°C.
• Automated surface-mount assemblies — Designed for carrier-tape feeding and automatic placement in high-volume manufacturing.

Unique Advantages

• High-temperature reliability: Specified for continuous operation at +135°C with 2000 h endurance, reducing the risk of premature degradation in hot environments.
• Predictable low-temperature behavior: ESR specified after −40°C testing, providing designers with verifiable impedance performance across cold conditions.
• High ripple handling: Measured ripple currents at both low and high frequencies (120 Hz and 10 kHz) simplify component selection for switching power stages.
• Assembly-ready SMD form factor: Tape-fed, surface-mount radial can package streamlines automated production and PCB integration.
• Automotive-grade qualification: AEC-Q200 rating supports integration into automotive systems that require component-level qualification.
• Regulatory compliance: RoHS compliant to current directives, supporting environmental and regulatory requirements.

Why Choose UCX1V182MNJ1MS?

UCX1V182MNJ1MS positions itself where high capacitance, temperature resilience, and verifiable ESR across temperature extremes are required. With a 1.8 mF value at 35 V, explicit ESR data at −40°C, and a 2000 h endurance at 135°C, it is suited for designs that demand stable bulk energy storage and filtering under rigorous thermal cycling and frequency stress.

This part is ideal for engineers specifying components for automotive power electronics and other high-temperature systems who need AEC-Q200 qualification, automated assembly compatibility, and clear, measured performance metrics for ripple, ESR, and lifetime.

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